<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=1908_-_Fractii_Ired</id>
	<title>1908 - Fractii Ired - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=1908_-_Fractii_Ired"/>
	<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=1908_-_Fractii_Ired&amp;action=history"/>
	<updated>2026-05-01T12:09:42Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.42.1</generator>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=1908_-_Fractii_Ired&amp;diff=3442&amp;oldid=prev</id>
		<title>Paul Matei at 11:27, 11 April 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=1908_-_Fractii_Ired&amp;diff=3442&amp;oldid=prev"/>
		<updated>2023-04-11T11:27:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:27, 11 April 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Rezolvare ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Rezolvare ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot; line&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot; line&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;def &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;validate_input&lt;/del&gt;(n):&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;def &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;validare_date&lt;/ins&gt;(n):&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     if not isinstance(n, int) or n &amp;lt; 1:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     if not isinstance(n, int) or n &amp;lt; 1:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;         return False&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;         return False&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l23&quot;&gt;Line 23:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 23:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;if __name__ == &amp;#039;__main__&amp;#039;:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;if __name__ == &amp;#039;__main__&amp;#039;:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     n = int(input(&amp;quot;Introduceti numarul: &amp;quot;))&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     n = int(input(&amp;quot;Introduceti numarul: &amp;quot;))&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     if &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;validate_input&lt;/del&gt;(n):&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;     if &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;validare_date&lt;/ins&gt;(n):&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;         nr = n&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;         nr = n&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Paul Matei</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=1908_-_Fractii_Ired&amp;diff=2328&amp;oldid=prev</id>
		<title>Paul Matei: Pagină nouă: == Cerinţa == Dându-se şirul de fracţii &#039;&#039;&#039;1/N, 2/N, 3/N, ...,N/N&#039;&#039;&#039;, să se afle câte fracţii sunt ireductibile. == Date de intrare == Programul citește de la tastatură numărul &#039;&#039;&#039;N&#039;&#039;&#039;. == Date de ieşire == Programul va afișa pe ecran numărul de fracţii ireductibile. == Restricții și precizări == *&#039;&#039;&#039;1 ≤ n ≤ 2.000.000.022&#039;&#039;&#039; == Exemplu == ; Intrare :4 ; Ieșire : 2 == Explicație ==  Fracţiile sunt &#039;&#039;&#039;1/4, 3/4&#039;&#039;&#039;. == Rezolvare == &lt;syntaxhighlight lang=...</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=1908_-_Fractii_Ired&amp;diff=2328&amp;oldid=prev"/>
		<updated>2023-04-01T18:33:13Z</updated>

		<summary type="html">&lt;p&gt;Pagină nouă: == Cerinţa == Dându-se şirul de fracţii &amp;#039;&amp;#039;&amp;#039;1/N, 2/N, 3/N, ...,N/N&amp;#039;&amp;#039;&amp;#039;, să se afle câte fracţii sunt ireductibile. == Date de intrare == Programul citește de la tastatură numărul &amp;#039;&amp;#039;&amp;#039;N&amp;#039;&amp;#039;&amp;#039;. == Date de ieşire == Programul va afișa pe ecran numărul de fracţii ireductibile. == Restricții și precizări == *&amp;#039;&amp;#039;&amp;#039;1 ≤ n ≤ 2.000.000.022&amp;#039;&amp;#039;&amp;#039; == Exemplu == ; Intrare :4 ; Ieșire : 2 == Explicație ==  Fracţiile sunt &amp;#039;&amp;#039;&amp;#039;1/4, 3/4&amp;#039;&amp;#039;&amp;#039;. == Rezolvare == &amp;lt;syntaxhighlight lang=...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Cerinţa ==&lt;br /&gt;
Dându-se şirul de fracţii &amp;#039;&amp;#039;&amp;#039;1/N, 2/N, 3/N, ...,N/N&amp;#039;&amp;#039;&amp;#039;, să se afle câte fracţii sunt ireductibile.&lt;br /&gt;
== Date de intrare ==&lt;br /&gt;
Programul citește de la tastatură numărul &amp;#039;&amp;#039;&amp;#039;N&amp;#039;&amp;#039;&amp;#039;.&lt;br /&gt;
== Date de ieşire ==&lt;br /&gt;
Programul va afișa pe ecran numărul de fracţii ireductibile.&lt;br /&gt;
== Restricții și precizări ==&lt;br /&gt;
*&amp;#039;&amp;#039;&amp;#039;1 ≤ n ≤ 2.000.000.022&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
== Exemplu ==&lt;br /&gt;
; Intrare&lt;br /&gt;
:4&lt;br /&gt;
; Ieșire&lt;br /&gt;
: 2&lt;br /&gt;
== Explicație == &lt;br /&gt;
Fracţiile sunt &amp;#039;&amp;#039;&amp;#039;1/4, 3/4&amp;#039;&amp;#039;&amp;#039;.&lt;br /&gt;
== Rezolvare ==&lt;br /&gt;
&amp;lt;syntaxhighlight lang=&amp;quot;python&amp;quot; line&amp;gt;&lt;br /&gt;
def validate_input(n):&lt;br /&gt;
    if not isinstance(n, int) or n &amp;lt; 1:&lt;br /&gt;
        return False&lt;br /&gt;
    return True&lt;br /&gt;
&lt;br /&gt;
if __name__ == &amp;#039;__main__&amp;#039;:&lt;br /&gt;
    n = int(input(&amp;quot;Introduceti numarul: &amp;quot;))&lt;br /&gt;
    if validate_input(n):&lt;br /&gt;
        nr = n&lt;br /&gt;
&lt;br /&gt;
        d = 2&lt;br /&gt;
        while n &amp;gt; 1:&lt;br /&gt;
            if n % d == 0:&lt;br /&gt;
                nr //= d&lt;br /&gt;
                nr *= d - 1&lt;br /&gt;
                while n % d == 0:&lt;br /&gt;
                    n //= d&lt;br /&gt;
            if d == 2:&lt;br /&gt;
                d = 3&lt;br /&gt;
            else:&lt;br /&gt;
                d += 2&lt;br /&gt;
            if d * d &amp;gt; n:&lt;br /&gt;
                d = n&lt;br /&gt;
&lt;br /&gt;
        print(nr)&lt;br /&gt;
        print(&amp;quot;\nDatele de intrare corespund restricțiilor impuse.\n&amp;quot;)&lt;br /&gt;
    else:&lt;br /&gt;
        print(&amp;quot;Datele de intrare nu corespund restricțiilor impuse.&amp;quot;)&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;/syntaxhighlight&amp;gt;&lt;br /&gt;
==Explicație rezolvare==&lt;br /&gt;
Codul Python calculează funcția Euler Totient pentru un număr natural introdus de utilizator. În timpul procesului de calcul, se parcurg divizorii primi distincti ai numărului și se aplică o formulă specifică pentru a obține valoarea funcției. Codul include, de asemenea, o verificare a datelor de intrare pentru a asigura validitatea acestora.&lt;/div&gt;</summary>
		<author><name>Paul Matei</name></author>
	</entry>
</feed>